Neutron scattering from 26Mg

Elastic and inelastic cross sections have been measured for 24 MeV neutrons incident on 26Mg using the time-of-flight technique. These cross sections and existing proton data were analyzed in terms of a Lane-consistent optical potential. Distorted-wave and coupled-channel calculations are presented. Deformation parameters for the first 2+ state (1.81 MeV) and the second 2+ state (2.94 MeV) derived from both the (n,n') and (p,p') data are used to obtain the ratio of neutron and proton transition matrix elements Msub(n)(E2) and Msub(p)(E2) for these states. Comparison of results for Msub(n)(E2)/Msub(p)(E2) with those obtained from pion work, from electromagnetic (EM) rates and theoretical evaluations are presented. (orig.)